Virgin Atlantic reward seat sale

Virgin Atlantic have just emailed me the details of their new reward seat sale. The sale starts today, and is live.
There are some good deals in economy – London to Miami for 25000 miles, for example, and the Virgin Atlantic redemption taxes tend to be usually lower than British Airways.
However, the choice of destinations is very limited. I have a feeling that Delta might have had something to say about this too, as they are all in the US.

Here is a snapshot:

All in all, if you were planning to go to any of those destinations, you might get a good deal. Availability for Y seems quite wide open too.

There is also a sale on upgrades, but I ignored that given that the base economy fare you would need is usually very expensive.